Lyric discussion by molofan 

Cover art for Can U Dig It? lyrics by Pop Will Eat Itself

as is obvious, this song is about things that PWEI dig. Here are some explanations of some of them:

The Twilight Zone: cult classic science fiction TV show from the 60s. The famous theme to the Twilight Zone is sampled in "Def.Con.One".

Marvel: comic book publisher

D.C.: comic book publisher

Run-DMC: one of the first rap groups to achieve mainstream popularity in the mid-80s.

Renegade Soundwave: classic dub group

AC/DC: rock band

Bruce Wayne: the public identity of superhero Batman.

Dirty Harry: famous character protrayed by Clint Eastwood.

Terminator: the James Cameron movie starring Arnold Schwarzenegger.

Alan Moore: comic book writer. The PWEI song "Def.Con.One" is about his graphic novel "Watchmen."

"Riffs? Yeah! Can U Dig It?": This line comes from the cult classic movie "The Warriors". The sample of a radio announcer saying "okay, let's get down to it boppers" at the beginning of the song is also from The Warriors. The Riffs are the biggest gang in NYC in the movie. This is the way they respond to their leader.

Optimus Prime and Galvetron: two characters in the Transformers.

"The Leader of the Pack": song from the 50s about a motorcycle hero who wins the heart of the girl singing the song and then bites it in an accident.

"Do Run-Run": Beach Boys song.

Spinderella: DJ for hip-hop girl group Salt N Pepa.

Bruce Lee: legendary martial arts actor

"The Bad and the Ugly": truncated from the full title "The Good, The Bad and The Ugly", a movie starring the aforementioned Clint Eastwood.

"V for Vendetta": a graphic novel by Alan Moore.

"Into the Groovy": not sure what this one is; all I can think of is a song by Sonic Youth alter-egos Ciccone Youth.

@molofan The song is called "Da Doo Ron Ron", and it's not a Beach Boys song. It's a Phil Spector song made famous by the Crystals. Many people later covered it—it launched the pop idol careers of both Shaun Cassidy and Debbie Byrne in the 70s—but I suspect the Poppies are referring to the original. (Actually, the Beach Boys have apparently been covering the song since 1998, when Mike Love got sole rights to tour as The Beach Boys. But I doubt they used their time machine to visit future Beach Boys concerts.)

The Ciccone Youth song...